Finding the Fourth Proportional to 391,055.20, 586,582.80 and 302,481.70
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Solution
The fourth proportional to 391,055.20, 586,582.80 and 302,481.70 is: 453,722.55
Step by Step Solution
- Step 1: Write the proportion equation
391,055.20 : 586,582.80 = 302,481.70 : x - Step 2: Convert to fraction form
391,055.20/586,582.80 = 302,481.70/x - Step 3: Cross multiply
391,055.20x = 586,582.80 × 302,481.70 - Step 4: Simplify right side
391,055.20x = 177,430,562,534.76 - Step 5: Solve for x
x = 177,430,562,534.76/391,055.20 - Step 6: Final answer
x = 453,722.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.